Add -Werror only for development builds
Merge pull request #161 from pasis/autotools

Add -Werror only for development builds
Respond to disco info requests without node attribute
Add newline before disco output
Respond to disco items query
Added disco items to features in disco info responses
Show message in console when receiving chat room invites
Handle when servers do not send fulljid with presence

A default resource "__prof_default" is created, and invisible to the
user for most purposes.
Guess conference server if not supplied when joining room (/join)

"@conference.<domain-part>" will be appended to the /join argument where
<domain-part> is the domainpart of the users jid. E.g. the user
"user@server.org" typing "/join chatroom" is equivalent to "/join
chatroom@conference.server.org"
Show shortened room jid if possible on invite
Added /invite for direct MUC invitations
Added ui/console module
Moved cons_about() to console module
Moved cons_show_login_success() to console module
Moved cons_show_wins() to console module
Moved cons_show_info() to console module
Moved cons_show_caps() to console module
Moved cons_show_software_version() to console module
Moved cons_show_room_list() to console module
Moved cons_show_disco_info() and cons_show_disco_items() to console
module